Rather average quality (lack of clear contrast)

For BenQ w1070 +, I bought a pair of these glasses and another HiShock (LCS under brand).
There is no picture: LCS are significantly better than those Cinemax "Gravity" (incidentally, I even doubt if I have the same model as all the rave reviews Or, I do not see. the same things that others ...)

Edit: Quite disappointed with this article, then I bought another pair of glasses Hi-Shock, but this time under the same seller sold under the same name and "Cinemax" (difficult to navigate with all these Appellations of OEM!)

This product, I think the picture is particularly bleak, with a very low contrast (the technical features give 1/750 1/1200 against 2 pairs for Hi-Shock, which is almost 2 times less. And it shows! ). Moreover, I find that the image is not very detailed (blame the quality of glasses? ...), And with a rather visible green cast.
Good point: no loss of sync (Hi-Shock LCS exhibit this flaw when you do not really fixed the screen, but not the Hi-Shock Cinemax)

As testing protocol, I made comparisons Gravity 3D (with a PS3 as a player). I "calibrated" my video projector in comparison with what I got, with HDMI spiltter on my Panasonic TV passive 3D. (HDMI cables are Monster). I also compared on The Hobbit 2.

The comparative tests of these glasses, sold at prices roughly equivalent, make me prefer the pair Hi-Sock "Cinemax" (we managed to get whites that are (almost) white - with brightness limits that are induced by Active 3D technology 144 Hz - I put a 2.5 gamma and contrast up).
Then comes the Hi Shock pair of LCS (high performance, but gives the impression of a yellow cast).
Then this pair Gravity (note that the relief effect seemed somewhat better opinion on this model. Is that an illusion due to these "defects" low contrast? ...)

Note that, in the copy sent, I had a protective film on only one glass. Was it a repackaged product ... Edit: apparently after phone conversation with the seller, it could be that there was an error of the dispenser, with sending a returned product.